TY  - JOUR
AU  - Herrero-Brocal, A.
AU  - Vicente, A.
PY  - 2024
DA  - 2024//
TI  - The majoron coupling to charged leptons
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 078
EP  - 33pp
VL  - 01
IS  - 1
PB  - Springer
KW  - Axions and ALPs
KW  - Baryon/Lepton Number Violation
KW  - Lepton Flavour Violation (charged)
AB  - The particle spectrum of all Majorana neutrino mass models with spontaneous violation of global lepton number include a Goldstone boson, the so-called majoron. The presence of this massless pseudoscalar changes the phenomenology dramatically. In this work we derive general analytical expressions for the 1-loop coupling of the majoron to charged leptons. These can be applied to any model featuring a majoron that have a clear hierarchy of energy scales, required for an expansion in powers of the low-energy scale to be valid. We show how to use our general results by applying them to some example models, finding full agreement with previous results in several popular scenarios and deriving novel ones in other setups.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2311.10145
UR  - https://doi.org/10.1007/JHEP01(2024)078
DO  - 10.1007/JHEP01(2024)078
LA  - English
N1  - WOS:001143228100004
ID  - Herrero-Brocal+Vicente2024
ER  -